These comments have been widely criticized for their fictional view of Japanese history, but how well do people in Japan understand that history? If there’s hope for the future, then present-day university students would show a deeper, more accurate grasp, right?

One of my classes has been discussing the experiences of refugees, including whether Japan should accept more of them. In recent years, Japan has granted refugee status to only about 0.05% of applicants, for a total of about 10-30 people per year. In contrast, other developed countries have accepted tens of thousand of refugees per year. Japan has ratified the UN Convention on Refugees, and as one of the wealthiest and most populous nations in the world, Japan could be a stronger member of the international community by lending aid to more of the world’s most needy.

However, many students disagreed, and their disagreements show a clear pattern in describing Japan as a special, unique place that cannot be compared with anywhere else. In this version of Japan, there are no foreigners, only Japanese—and all Japanese share the same ethnicity and language. (Well, some say that there are Ainu, but their existence does not refute the dominant narrative.)

How could Japan sustain this monoracial, monoethnic, homogeneous space? Geography. As a series of islands, Japan was inaccessible to the rest of the world. Precisely how the inhabitants of the Japanese islands got here is unclear, because if they used boats, then couldn’t other people have also used boats to travel here? Was there an ancient land bridge that later collapsed, standing the islands in the middle of the ocean? Were the original inhabitants amazing swimmers who made the journey from the Korean peninsula?

The Japanese people have been united through a shared “island mentality” (shimaguni konjō) that instructed them to love each other and to love being Japanese. This mentality prevents Japanese from accepting others into their club. Also, the fact that Japan has always been so homogeneous means that Japanese have no experience living near non-Japanese, and are not familiar with dealing with such people.

I’ve tried to remind my students that in the first half of the 20th century, Japan was the head of a colonial empire that spanned much of Asia and the Pacific Islands. Millions of people from throughout the empire lived on the Japanese mainland, held Japanese citizenship, and voted in Japanese elections. One student later acknowledged that his grandmother told him that as a child many of her friends were Korean.

Notions of Japanese identity in this era justified Japan’s dominance by emphasizing ties between Japan and its Asian neighbors. One government propaganda slogan professed Japanese unity with its Asian brothers and sisters as “do-so, do-shu” (Same origin, same race). The idea of Japan as a homogeneous nation is a postwar idea to reunite a defeated nation after the collapse of its empire.

These facts of Japanese history are absent from students’ narratives. Instead, they act as if nothing happened in Japan between the Meiji Restoration in the 1860s and the Tokyo Olympics in 1964—100 years of solitude on Fantasy Island. It’s as if Gabriel García Márquez and Mr. Roarke were both Japanese and had 127 million love children.

But somehow their fantastical islands have a few million non-fantastical people, and there are other people whose islands became part of the fantasy more recently—and many of whom are unhappy about this. And many people who pass as fantasy people are, in fact, of non-fantastical ancestry. And let’s not forget the hundreds of thousands of fantastical return migrants, who also brought their slightly less fantastical Latin American family members.

Students express concerns over the challenges of integrating immigrants, refugees, and other foreigners into Japanese society. Those are valid concerns, but their solution is to close the door and to isolate Japan from the rest of the world. Is that a solution? Japan does have a neighbor that is much more isolated and that is largely closed to foreigners—North Korea. But is that the model they want to follow?

In an attempt to get students to rethink the issues, I read Dr. Seuss’s classic story Green Eggs and Ham, which challenges readers to get past their dislike of the unfamiliar. Green eggs and ham are delicious, after all.

Japan’s economic success has come from being embedded in the global economy, and continued success in the 21st century requires accepting not only people’s money, but the people themselves. We’re not scary. We’re green eggs and ham. Try us, you might like us.